Thread-guide and means of attachment



F. Q. HARTMAN. THREAD GUIDE AND MEANS OF ATTACHMENT.

APPLICATION FILED APR. 14. 1920.

1,385,047. Patented July 19, 1921.

OFIE.

FERDINAND Q. HARTMAN, OF DANVILLEJPENNSYLVANIA.

THREAD-GUIDE AND MEANS OF ATTACHMENT.

Application filed April 14,

To all whom it may concern.

Be it known that I, FERDINAND Q. HART- MAN, a citizen of the United States, and resident of Danville, in the county of Montour and State of Pennsylvania, have invented a new and useful Improvement in Thread-Guides and Means of Attachment, of which the following is a specification.

My present invention is directed to a thread guide and means by which the guide may be removably secured to the thread breaking device, which is interposed between the spindles and the take-up spool on which the threads arewound, and which shall be under the control of each of the thread guide levers to perform its function of breaking a companion thread when another thread is unintentionally broken, so that the several threads may be united before any one or more of the threads has or have been allowed to be wound upon the take-up spool without its or their companion thread or threads.

The object of the invention is to provide a device of this character which is relatively cheap and simple in construction while eflicient in action.

A practical embodiment of my invention is represented in the accompanying drawing, in which,

Figure 1 represents a front elevation of the device in operative position, so much of the spinning machine being shown as will suffice to disclose a practical application of my invention.

Fig. 2 represents a side elevation of the parts shown in Fig. 1, and

Fig. 3 represents a detail section showing the means for attaching the guide eyes to the thread guide levers.

The main frame of the machine at one end is denoted by 1, the take-up spool by 2, the traverse guide for assembling the threads and laying them on the take-up spool by 3, the wheel for driving the take-up spool by 4, and a pair of spindles for spinning two independent threads by 5, 6.

The bobbins which carry the threads are mounted on spindles 5, 6, in the usual manner, and are indicated by 7, 8. The threads themselves are denoted by 9, 10.

For the purpose of supporting the thread breaking mechanisms in proper position on the spinning machine so that there shall be one for each group of threads to be combined on a single take-up spool, I secure a crossbar 11 to the end frames 1 of the ma Specification of Letters Patent.

Patented July 19, 1921..

1920. Serial No. 373,748.

chine. This crossbar may be composed of wood so as to receive a screw 12 for attaching the brackets containing the thread breaking mechanism in position.

Each bracket consists of a face plate 13 which has two forwardly projecting arms 14, 15, each of which arms has, in turn, a laterally projecting wing 16, 17.

A pair of thread guide levers 18, 19, are pivoted in the lower part of the arms 14, 15, by a pintle 20. This pintle is provided with a head at one end and, in order to prevent its unintentional withdrawal from the arms 14, 15, its other end has a circumferential groove in which a split ring 21 may be sprung to act as a nut.

The thread guide levers 18, 19 are pro vided with feet (one of which is shown at 22 Fig. 2), which project rearwardly sub stantially at right angles to the main body portion of the said levers, and the balance of the parts is such that the weight of the said feet 22 causes the levers to be under a normal tendency to swing or drop rearwardly.

Each of the said guide levers 18, 19 has a guide eye 23 fixed in its upper part. These guide eyes are composed of spring wire, one end of which is coiled into a pigtail for receiving and guiding the thread, while the other end is bent back upon itself after the manner of a hairpin in order that it may be compressed and inserted in the opening in the guide lever for resiliently holding the guide thread in position therein. This part of the guide eye is so bent as to leave a slight hump 24 on the end thereof; while the end of the said bent-back portion of the guide eye is bent at right angles, as shown at 24* (Fig. 3), in order to fit into a cor responding recess at the mouth of said opening in the lever. As a result of this arrangement, it will be seen that the guide eye is held firmly against accidental withdrawal from the lever by the hump 24, while the bent end 24* prevents the guide eye from turning in the lever. This arrangement is shown in Fig. 3 and it provides a very cheap construction and one in which the guide may be removed andreplaced with a minimum of labor when desired.

The thread breaking mechanism proper consists of an arm 25 which is pivoted on the pintle 20 between the levers 18, 19 and which has a weight 26 for over-balancing it so as to cause it to normally rest in a substantially horizontal position and out of the way of the threads running from the bobbins 7, 8, as clearly shown inFig. 2. In.

this position, the arm 25 impinges against the lower part of the face plate 13 of the bracket.

The said arm25 has a pair of laterally extending lugs 27 which are adapted to be engaged by a foot 22 of a thread guide lever 18, 19, when one of the latter falls or drops rearwardly, for the purpose of over-balancing the arm 25 and swinging it against the resistance of its weight 26 into approximation to the threads running from the bobbins 7, 8, as will be hereinafter described.

The extremity of the arm 25 opposite the weight 26 is furnished with thread breaking mechanism which consists of a crosshead 28 provided with a thread catching coil 29 at each end thereof. This crosshead may be composed or wire suitably bent and coiled into shape, and it may be conveniently secured to the arm 25 by bending it around ears 30 formed thereon.

This device also includes combined guide and tension elements which have coiled body portions 31, 32 and upwardly extending hook-shaped stems 33, 3 1. This combined guide and tension elements may appropriately be composed of wire coiled and bent into shape, and they are secured to the wings 16, 17 of the bracket by means of screws 35, 36. It is intended that the thread shall be passed through one or more of the coils of the body portions 31, 32, and then wound around the stems 83, 34;, one or more times in order to give the desired tension, all as clearly shown in Figs. 1 and 2.

In order to hold the thread guide levers 18, 19 substantially motionless and out of engagement with the arm 25 during'the spinning and winding of the thread, a guide bar 37' is mounted in the wings 1.6, 17 of the bracket. This guide bar may be composed of wire and takes the form of a hairpin so as to provide, in effect, a pair of rails. extending between the wings 16, 17, as clearly shown in Fig. 1. The location ofthis guide bar is suchthat, when the thread guide levers 18,19 are in their thread guiding position with their eyes 23 engaged bythe thread 9,,10, the said eyes will lie between the two rail membersof the guide bar 37, while the thread passes in front of said members. It will be apparent that this arrangement tends to hold the levers 18, 19, snugly up against the guide bar 87 during the operation: of the machine, while the said guide bar also imparts a slight additional tension to the thread, owing, to the balance of the levers 18, 19, which tends to cause them to fall rearwardly as already described.

The subject matter ofmy co-pending ap plications, Serial No. 237,600, filed May 31st, 1918, Serial Nos. 373,749 and 373,750,1iled April 14th, 1920, is shown but not claimed herein.

It will be understood that various changes may be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention; and hence I do not intend to be limited to the details herein shown and described except as they may be specifically included in the claims.

What I claim is: H r

1. In a device of the character described, a thread guide lever having an opening for the reception of a guide eye, and a guide eye having a yielding body portion fitted to be compressed and inserted into said opening for holding the eye in position on the lever.

2. In a device of the character described, a thread guide lever having an opening for the reception of a guide eye, and a guide eye having a body portion composed of spring wire fitted to be compressed and inserted into said opening for holding the eye in position on the lever.

3. In a device of the character described, a thread guide lever having an opening for the reception of a guide eye, and a guide eye having a body portion composed of spring wire, said body portion 01 the guide eye being provided with a hump, whereby the body portion of the guide eye may be compressed and inserted into the opening with its hump protruding from one end thereof for holding the eye in position on the lever.

1. In a device of the character described, a thread guide lever having an opening for the reception of a guide eye, and a guide eye having a body portion composed of spring wire, said opening in the lever having a recess at its mouth and said body portion of the guide'eye being provided with a projection adapted to fit in said recess, whereby the body portion of the guide eye may be compressed; and inserted into the opening with its projection in said recess for holding the eye in position on the leverand against rotary movement thereon.

5. In a device of the character described,

a thread guide lever having an opening for the reception of a guide eye, and a guide eye having a body portion composed of spring wire, said opening in the lever having a recess at its mouth and said body portion of the guide eye being. provided with a projection adapted to fit in said recess and with a hump, whereby the body portion of the guide eye may be compressed and inserted in the opening with its hump protruding from one end thereof and its projection in said recess "for holding the eye in position on the lever and against rotary movement thereon. a

In testimony, that I claim the foregoing as my invention, have signed my name this 22nd day of March, 1920,.

FERDINAND Q. HARTMAN, 

